Via the inspiration for that thread: http://en.wikipedia.org/wiki/Basic_income: "Winners of the Nobel Prize in Economics that fully support a basic income include Herbert Simon[24], Friedrich Hayek[25][26], James Meade, Robert Solow[27], and Milton Friedman[28]."
Hardly communists, or even Marxists. It seems to me that the original poster is not arguing for government enforced fairness (and communism isn't any better at delivering that than capitalism IMO), but for mitigation of the worst inequities. Over in Europe colege education is heavily subsidized by the state, on the understanding that the state will collect a rather greater share of subsequent income in the form of taxes. This is by no means perfect, and indeed European college graduates are not assured of a job or promising opportunities on graduating either, far from it; but at least they graduate without enormous debts.
On the flip side, America provides far better business opportunities for entrepreneurs, not least the simple fact of a single market of 300 million with a single dominant language and a national media landscape, which is not to be sneezed at. Indeed, in 50-100 years, when China or India have caught up with the developed world in terms of GDP per capita, the potential entrepreneurial gains from being able to market to a Billion people at once will make US business fortunes look modest.
I think the point being made here is not that communism or any other system is better than capitalism, but that diligence and loyalty are socially exalted but economic rewards flow more towards opportunists and rent-seekers.